Methanol Aromatization over Zn and Ce Modified Hierarchical ZSM-5 Catalysts: Effect of Ce as a Promoter

Table 3

Textural properties of different catalysts.

Zeolites	SBET^a	Sext^b	Vtotal^c	Vmicro^b	Vmeso^d
	(m^2/g)	(m^2/g)	(cm^3/g)	(cm^3/g)	(cm^3/g)
Z	255	52	0.17	0.11	0.06
HZ	297	116	0.24	0.10	0.14
0.6% Ce/HZ	293	107	0.23	0.10	0.13
2% Zn/HZ	207	83	0.18	0.07	0.11
2% Zn-0.6% Ce/HZ	241	92	0.21	0.09	0.12

^a BET method. ^b t-plot method. ^c Calculated from the adsorption branch at p/p₀ = 0.99. ^dV_meso = V_total-V_micro.